Assume (X,o) and (Y, on X x Y as are groups. Let X × Y = {(x, y) | æ € X, y E Y} and define the operation * (x1,Y1) * (x2, Y2) = (x1 © x2, Y1 • Y2) for (a1, Y1), (x2, Y2) E X × Y. Show that (X x Y, *) is a group.
Assume (X,o) and (Y, on X x Y as are groups. Let X × Y = {(x, y) | æ € X, y E Y} and define the operation * (x1,Y1) * (x2, Y2) = (x1 © x2, Y1 • Y2) for (a1, Y1), (x2, Y2) E X × Y. Show that (X x Y, *) is a group.
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Question
![1. Assume (X, o) and (Y,
on X x Y as
are groups. Let X × Y = {(x, y) |x € X, y € Y} and define the operation *
(x1, Y1) * (x2, Y2) = (x1 0 x2, Y1 • Y2)
for (x1, y1), (x2,Y2) E X × Y. Show that (X x Y, *) is a group.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fffb15295-c389-4433-b9d2-1d63731c9cb9%2Fa4f6d885-823c-4f60-a96f-ec15338c2479%2Frv07ex4_processed.jpeg&w=3840&q=75)
Transcribed Image Text:1. Assume (X, o) and (Y,
on X x Y as
are groups. Let X × Y = {(x, y) |x € X, y € Y} and define the operation *
(x1, Y1) * (x2, Y2) = (x1 0 x2, Y1 • Y2)
for (x1, y1), (x2,Y2) E X × Y. Show that (X x Y, *) is a group.
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